SqlRowUpdatedEventArgs SqlRowUpdatedEventArgs SqlRowUpdatedEventArgs SqlRowUpdatedEventArgs Class

定義

RowUpdated イベントのデータを提供します。Provides data for the RowUpdated event.

public ref class SqlRowUpdatedEventArgs sealed : System::Data::Common::RowUpdatedEventArgs
public sealed class SqlRowUpdatedEventArgs : System.Data.Common.RowUpdatedEventArgs
type SqlRowUpdatedEventArgs = class
    inherit RowUpdatedEventArgs
Public NotInheritable Class SqlRowUpdatedEventArgs
Inherits RowUpdatedEventArgs
継承

次の例は、イベントとRowUpdating RowUpdatedイベントの両方を使用する方法を示しています。The following example shows how to use both the RowUpdating and RowUpdated events.

このRowUpdatingイベントは、次の出力を返します。The RowUpdating event returns this output:

イベントの引数: (command = System. Data. SqlClient commandType = 2 status = 0)Event Arguments: (command=System.Data.SqlClient.SqlCommand commandType=2 status=0)

このRowUpdatedイベントは、次の出力を返します。The RowUpdated event returns this output:

イベントの引数: (command = recordsAffected、2 = 1 row = system.string [37] status = 0 のように指定します)Event Arguments: (command=System.Data.SqlClient.SqlCommand commandType=2 recordsAffected=1 row=System.Data.DataRow[37] status=0)

// handler for RowUpdating event
private static void OnRowUpdating(object sender, SqlRowUpdatingEventArgs e) 
{
    PrintEventArgs(e);
}

// handler for RowUpdated event
private static void OnRowUpdated(object sender, SqlRowUpdatedEventArgs e) 
{
    PrintEventArgs(e);
}

public static int Main() 
{
    const string connectionString = 
              "Integrated Security=SSPI;database=Northwind;server=MSSQL1";
    const string queryString = "SELECT * FROMProducts";

    // create DataAdapter
    SqlDataAdapter adapter = new SqlDataAdapter(queryString, connectionString);
    SqlCommandBuilder builder = new SqlCommandBuilder(adapter);

    // Create and fill DataSet (select only first 5 rows)
    DataSet dataSet = new DataSet();
    adapter.Fill(dataSet, 0, 5, "Table");

    // Modify DataSet
    DataTable table = dataSet.Tables["Table"];
    table.Rows[0][1] = "new product";

    // add handlers
    adapter.RowUpdating += new SqlRowUpdatingEventHandler( OnRowUpdating );
    adapter.RowUpdated += new SqlRowUpdatedEventHandler( OnRowUpdated );

    // update, this operation fires two events 
    // (RowUpdating/RowUpdated) per changed row 
    adapter.Update(dataSet, "Table");

    // remove handlers
    adapter.RowUpdating -= new SqlRowUpdatingEventHandler( OnRowUpdating );
    adapter.RowUpdated -= new SqlRowUpdatedEventHandler( OnRowUpdated );
    return 0;
}

private static void PrintEventArgs(SqlRowUpdatingEventArgs args) 
{
    Console.WriteLine("OnRowUpdating");
    Console.WriteLine("  event args: ("+
        " command=" + args.Command + 
        " commandType=" + args.StatementType + 
        " status=" + args.Status + ")");
}

private static void PrintEventArgs(SqlRowUpdatedEventArgs args) 
{
    Console.WriteLine("OnRowUpdated");
    Console.WriteLine( "  event args: ("+
        " command=" + args.Command +
        " commandType=" + args.StatementType + 
        " recordsAffected=" + args.RecordsAffected + 
        " status=" + args.Status + ")");
}
    ' handler for RowUpdating event
    Private Shared Sub OnRowUpdating(sender As Object, e As SqlRowUpdatingEventArgs)
        PrintEventArgs(e)
    End Sub 

    ' handler for RowUpdated event
    Private Shared Sub OnRowUpdated(sender As Object, e As SqlRowUpdatedEventArgs)
        PrintEventArgs(e)
    End Sub 
    
    'Entry point which delegates to C-style main Private Function
    Public Overloads Shared Sub Main()
        System.Environment.ExitCode = Main(System.Environment.GetCommandLineArgs())
    End Sub
    
    Overloads Public Shared Function Main(args() As String) As Integer
        Const connectionString As String = _
            "Integrated Security=SSPI;database=Northwind;server=MSSQL1"
        Const queryString As String = "SELECT * FROMProducts"
        
        ' create DataAdapter
        Dim adapter As New SqlDataAdapter(queryString, connectionString)
        Dim builder As SqlCommandBuilder = New SqlCommandBuilder(adapter)
        
        ' Create and fill DataSet (select only first 5 rows)
        Dim dataSet As New DataSet()
        adapter.Fill(dataSet, 0, 5, "Table")
        
        ' Modify DataSet
        Dim table As DataTable = dataSet.Tables("Table")
        table.Rows(0)(1) = "new product"
        
        ' add handlers
        AddHandler adapter.RowUpdating, AddressOf OnRowUpdating
        AddHandler adapter.RowUpdated, AddressOf OnRowUpdated
        
        ' update, this operation fires two events 
        '(RowUpdating/RowUpdated) per changed row 
        adapter.Update(dataSet, "Table")
        
        ' remove handlers
        RemoveHandler adapter.RowUpdating, AddressOf OnRowUpdating
        RemoveHandler adapter.RowUpdated, AddressOf OnRowUpdated
        Return 0
    End Function 
    
    
    Overloads Private Shared Sub PrintEventArgs(args As SqlRowUpdatingEventArgs)
        Console.WriteLine("OnRowUpdating")
        Console.WriteLine("  event args: (" & " command=" & args.Command.CommandText & _
           " commandType=" & args.StatementType & " status=" & args.Status & ")")
    End Sub 
    
    
    Overloads Private Shared Sub PrintEventArgs(args As SqlRowUpdatedEventArgs)
        Console.WriteLine("OnRowUpdated")
        Console.WriteLine("  event args: (" & " command=" & args.Command.CommandText & _
           " commandType=" & args.StatementType & " recordsAffected=" & _
           args.RecordsAffected & " status=" & args.Status & ")")
    End Sub 
End Class 

注釈

イベントRowUpdatedは、行Updateに対してが完了したときに発生します。The RowUpdated event is raised when an Update to a row is completed.

を使用Updateする場合、データ行が更新されるたびに発生するイベントが2つあります。When using Update, there are two events that occur for each data row updated. 実行順序は次のとおりです。The order of execution is as follows:

  1. DataRow値は、パラメーター値に移動されます。The values in the DataRow are moved to the parameter values.

  2. OnRowUpdating イベントが発生します。The OnRowUpdating event is raised.

  3. コマンドが実行されます。The command executes.

  4. コマンドがにFirstReturnedRecord設定されていて、最初に返された結果DataRowがに配置されている場合は。If the command is set to FirstReturnedRecord, and the first returned result is placed in the DataRow.

  5. 出力パラメーターがある場合は、 DataRowに配置されます。If there are output parameters, they are placed in the DataRow.

  6. OnRowUpdated イベントが発生します。The OnRowUpdated event is raised.

  7. AcceptChanges が呼び出されます。AcceptChanges is called.

コンストラクター

SqlRowUpdatedEventArgs(DataRow, IDbCommand, StatementType, DataTableMapping) SqlRowUpdatedEventArgs(DataRow, IDbCommand, StatementType, DataTableMapping) SqlRowUpdatedEventArgs(DataRow, IDbCommand, StatementType, DataTableMapping) SqlRowUpdatedEventArgs(DataRow, IDbCommand, StatementType, DataTableMapping)

SqlRowUpdatedEventArgs クラスの新しいインスタンスを初期化します。Initializes a new instance of the SqlRowUpdatedEventArgs class.

プロパティ

Command Command Command Command

SqlCommand の呼び出し時に実行される Update(DataSet) を取得または設定します。Gets or sets the SqlCommand executed when Update(DataSet) is called.

Errors Errors Errors Errors

Command の実行時に .NET Framework データ プロバイダーが生成したエラーを取得します。Gets any errors generated by the .NET Framework data provider when the Command was executed.

(Inherited from RowUpdatedEventArgs)
RecordsAffected RecordsAffected RecordsAffected RecordsAffected

SQL ステートメントの実行によって変更、挿入、または削除された行の数を取得します。Gets the number of rows changed, inserted, or deleted by execution of the SQL statement.

(Inherited from RowUpdatedEventArgs)
Row Row Row Row

DataRow を通じて送信された Update(DataSet) を取得します。Gets the DataRow sent through an Update(DataSet).

(Inherited from RowUpdatedEventArgs)
RowCount RowCount RowCount RowCount

バッチでの更新済みレコードで処理された行数を取得します。Gets the number of rows processed in a batch of updated records.

(Inherited from RowUpdatedEventArgs)
StatementType StatementType StatementType StatementType

実行された SQL ステートメントの種類を取得します。Gets the type of SQL statement executed.

(Inherited from RowUpdatedEventArgs)
Status Status Status Status

UpdateStatus プロパティの Command を取得します。Gets the UpdateStatus of the Command property.

(Inherited from RowUpdatedEventArgs)
TableMapping TableMapping TableMapping TableMapping

DataTableMapping を通じて送信された Update(DataSet) を取得します。Gets the DataTableMapping sent through an Update(DataSet).

(Inherited from RowUpdatedEventArgs)

メソッド

CopyToRows(DataRow[]) CopyToRows(DataRow[]) CopyToRows(DataRow[]) CopyToRows(DataRow[])

指定した配列に、変更された行の参照をコピーします。Copies references to the modified rows into the provided array.

(Inherited from RowUpdatedEventArgs)
CopyToRows(DataRow[], Int32) CopyToRows(DataRow[], Int32) CopyToRows(DataRow[], Int32) CopyToRows(DataRow[], Int32)

指定した配列に、変更された行の参照をコピーします。Copies references to the modified rows into the provided array.

(Inherited from RowUpdatedEventArgs)
Equals(Object) Equals(Object) Equals(Object) Equals(Object)

指定したオブジェクトが、現在のオブジェクトと等しいかどうかを判断します。Determines whether the specified object is equal to the current object.

(Inherited from Object)
GetHashCode() GetHashCode() GetHashCode() GetHashCode()

既定のハッシュ関数として機能します。Serves as the default hash function.

(Inherited from Object)
GetType() GetType() GetType() GetType()

現在のインスタンスの Type を取得します。Gets the Type of the current instance.

(Inherited from Object)
MemberwiseClone() MemberwiseClone() MemberwiseClone() MemberwiseClone()

現在の Object の簡易コピーを作成します。Creates a shallow copy of the current Object.

(Inherited from Object)
ToString() ToString() ToString() ToString()

現在のオブジェクトを表す文字列を返します。Returns a string that represents the current object.

(Inherited from Object)

適用対象

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